The invention relates to the LED (
Light Emitting Diode) technical field, particularly to an LED
plant light which is used for controlling
plant growth. Compared with the prior art, the LED
plant light for controlling the
plant growth comprises an LED plant lighting lamp capable of outputting different power; the LED plant lighting lamp divides
red light and
blue light which are needed by plants into two groups of circuits which are controlled through synthetic power supply; three groups of currents with different sizes can be switched and stably output through a controller; every group of currents respectively control the different power of the
red light and the
blue light to achieve different light matching and switch in three growing periods of the plants to meet light
waves suitable for the
plant growth and needed in different growing periods of growing leaves, growing roots and growing fruits of the plants; and different light
waves are switched for lighting through on-off control of the controller to enable light of the plants to reach the top efficiency to promote the growth of the plants and greatly improve the growing speed of the plants. The LED plant light for controlling the
plant growth has the advantages of being convenient to control, simple to use and low in usage cost, reducing the lighting costs and the like.